JPS6012428B2 - Rust prevention pre-treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for applying pickling or the like to the reinforcement before the rust prevention treatment, for example, when applying mortar to a treated object such as reinforcement for a concrete panel to prevent rust. The present invention relates to a coin protection preprocessing device.

Conventionally, this type of equipment has not been very automated, and each object to be processed has to be manually immersed in processing tanks for degreasing, water washing, pickling, water washing, neutralization, etc. The object to be processed is suspended from a hanging hook attached to an endless chain, and the object to be processed is lowered along with the endless chain and immersed in each processing tank in order for processing.

However, the former method involves extremely inefficient work, while the latter method improves work efficiency, but cannot be applied in cases where the processing time of each treatment tank is different, and it lacks versatility. There were drawbacks.

An object of the present invention is to provide a highly versatile anti-rust pretreatment device that has good work efficiency and can easily accommodate changes in treatment steps.

The present invention is one side of multiple processing tanks! In addition to providing a processing material carrying-in section, a processing material carrying-out section is provided on the pond side, and a plurality of processing materials are supported and moved together from this carrying-in section through each processing tank to the carrying-out section. A carrier bar is provided,
A first transfer device that supports these carrier bars and moves from the carry-in section to a predetermined position in the processing tank, and a second transfer device whose movement range partially overlaps with the first transfer device and moves from the processing tank to the carry-out section. The first and second transfer devices are sequentially transferred while processing in each processing tank, and the movement of the first and second transfer devices is adjusted according to the number of processing tanks, processing time in the processing tank, etc. The purpose is to achieve the above object by making it possible to perform the movement in an optimal manner and by automating this movement by sequence control or the like.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows a rust prevention treatment system including a pretreatment device according to the present invention.

In this figure, a first traverser 10 of an automatically operated type carries in a workpiece 110 (see Fig. 3), such as reinforcement for a concrete panel, which is constructed by molten round steel vertically and horizontally in a frame. is movable on a pair of loading rails 11,
At the end of the carrying rail 11, a hanging loop 2 made of Type 1 steel is arranged in a direction perpendicular to the rail 11. This hanging rail 12 is formed at a height sufficient to attach a wheeled hanging device 100 (see FIGS. 4 and 5) to the upper end of the workpiece 110 carried in by the traverser 10 and suspend it. . Further, this hanging rail 12 is extended to a treated material loading section 21 on one side of the rust prevention pretreatment device 20 according to the present invention. The rust prevention pre-treatment device 20 includes a plurality of treatment tanks 22, 23, 2, for example, five treatment tanks 22, 23, 2 for sequentially degreasing, first water washing, pickling, second water washing, and neutralization from the import side.
4, 25, and 26, the degreasing tank 22 contains an alkaline solution such as sodium ortho citrate, the pickling tank 24 contains a rust removing solution such as phosphoric acid, sulfuric acid, etc. Each of the processing tanks 26 is filled with a neutralizing liquid such as sodium sulfite.

In this case, as the rust removing liquid, phosphoric acid is preferable since the liquid can be easily distributed to the reinforcement of the concrete panel as the object to be treated. In addition, the other side of the rust prevention pretreatment device 20 has a treated material carrying out section 2.
7 has a hanging rail 13 similar to the hanging rail 12 described above.
is pulled out in a direction perpendicular to the flow direction of the pretreatment device 20.

This hanging rail 13 extends through a drain drying oven 32 having a hot air blower 31 and through a masking workbench 33, reaches the position of an automatically operated second traverser 34, Two rows of seals are provided from the inlet side to the traverser 34, and a chain conveyor 13A with a dock is attached to the draining and drying oven 32 to enable automatic feeding. Further, the traverser 34 extends along the pair of rails 35 to the hanging rail 13.
It is possible to move in a direction perpendicular to the . Directly to the side of the traverser 34, the hanging rail 13
A hanging rail 14 is provided parallel to and on the same side as the hanging rail 13, and this hanging rail 1
4 extends to a rust prevention drying chamber 37 through a rust prevention treatment tank 36 for covering the circumferential surface of the reinforcing bars with mortar to prevent rust.

This rust prevention drying chamber 37 has a hot air blower 38 for blowing out hot air from the lower part of this drying chamber 37, and
The transfer mechanism 39 is constructed by connecting the vicinity of both ends of a plurality of moving rails 40 made of Type 1 steel, which are equivalent to each of the suspension rails 12, 13, and 14, with an endless chain 41. Hanging tool 11 with wheels is placed on the moving rail 40
The reinforcing bars suspended through the reinforcing bars are moved from one side of the drying chamber 37 to the other side while drying the mortar attached to the reinforcing bars. On one side of the pond side of the drying chamber 37, that is, on the right side in FIG. Whale muscle that requires severe and thorough rust prevention is returned to the second traverser 34 side through this reprocessing conveyor 5, and is again sent to the rust prevention treatment tank 36 side. ing.

Further, on the other side of the drying chamber 37, that is, on the left side in FIG. It extends to the position of a third self-operating traverser 42, which is movable along a rail 43 extending in a direction perpendicular to the finished product conveyor 16. The lateral pupil of this traverser 43 has a hanging rail 1 parallel to the finished product conveyor 16 and on the same side as the finished product conveyor 6.
7 is provided, and this hanging rail 17 extends through the masking removal workbench 44 to the position of an automatically operated traverser 45 with a lifter. FIGS. 2 and 3 show details of the rust prevention pretreatment device 20. FIG.

This rust prevention pretreatment device 201 is equipped with a plurality of carrier bars 50, for example, four carrier bars 50.
is a support rail 51 formed by cutting type 1 steel similar to the suspension rails 12, 13, etc. into a predetermined length;
A pair of brackets 5 are fixed to both ends of the support rail 51 and formed in a key shape so as to face upward in opposite directions.
2, support protrusions 53 protruding from both sides of the tip ends of these brackets 52, and a support protrusion 53 made of rubber or the like and provided slightly inside of these support protrusions 53 so as to cover part of the lower surface of the placket 52. It is composed of a catch seat 54. Each treatment tank 22 to 26 of the rust prevention pretreatment device 20
Support frames 61 are erected on both sides of the
Two crane-like cranes of identical construction run on rails 62 laid on these support frames 61.
A second transfer device 63, 64 is movably provided.

Since the first and second transfer devices 63 and 64 have the same structure, the same parts are designated by the same reference numerals, and the description will be given for both transfer devices 6.
3 and 64 at the same time.

The first and second transfer devices 63 and 64 are the rails 6 on both sides.
A driving drive source 74 such as a motor that drives wheels 73 via an interlocking mechanism 72 installed on the frame 71 and consisting of a reducer, sprocket, chain, connecting shaft, etc. , a pair of guide columns 75 whose upper ends are fixed to both sides of the frame 71 and whose lower ends are suspended close to the ground; and these guide columns 7.
A movable bracket 76 is attached to each of the frame 71 so as to be movable up and down and can support the support protrusion 63 of the carrier bar 50, and a movement mechanism 77 is provided on both sides of the frame 71 and includes a reducer, a sprocket, a chain, etc. It is comprised of a lifting drive source 78 such as a motor that moves the movable bracket 76 up and down, respectively. At this time, the column 75, the movable bracket 76, the interlocking mechanism 77, and the elevating drive source 78 constitute an elevating mechanism. In addition, the first transfer mechanism 63 can move from the processing object loading section 21 to a predetermined position on each of the processing tanks 22 to 26 within a range that does not interfere with the second transfer device 64. It is possible to move from a predetermined position on the processing tanks 22 to 26 to the processed material unloading section 27 within a range that does not interfere with the first transfer device 64, and these first and second transfer devices 63 and 64 are The rust pretreatment device 20 can be operated automatically or manually according to a predetermined program in response to detection signals from detection switches (not shown) provided at various locations in the rust pretreatment device 20. A carry-in side carrier bar moving device 80 is provided in the processing object carrying-in section 21,
This moving device 80 includes a pair of guide rails 8 provided at positions corresponding to the seats 54 on both end sides of the carrier bar 50.
1, each of which is movable on these guide rails 81 and supports the seat 54 of the carrier bar 50, and is suspended until the height of the support rail 51 of the carrier bar 50 is reached while supporting the seat 54. The machine is constructed of a pair of movable tables 82 provided to match the height of the rail 12, and a pair of pusher cylinders 83, each of which has a piston rod tip attached to the movable tables 82 and moves these movable tables 82 forward and backward. By driving these cylinders 83, the carrier bar 50 can be moved from a carry-in position corresponding to the extending direction of the hanging rail 12 to a carrier bar transfer position near the degreasing treatment tank 22, or vice versa. There is. The workpiece unloading section 27 is provided with an unloading carrier bar moving device 90 having the same configuration as the loading carrier bar moving device 80 .

A pair of guide rails 9 are provided at positions corresponding to the receiving seats 54 on both end sides of the carrier bar 50.
1, each of which is movable on these guide rails 91 and supports the seat 54 of the carrier bar 50, and when the seat 54 is supported, the height of the support rail 51 of the carrier bar 50 is exactly the same as that of the hanging rail. 13, and a pair of pusher cylinders 93 that move these moving tables 92 forward and backward, and the carrier bar 50 is suspended by driving these cylinders 93. The carrier bar can be moved from a carry-out position corresponding to the extending direction of the rail 13 to a carrier bar transfer position near the second washing treatment tank 26 or vice versa. On both sides of each of the processing tanks 22 to 26, one pedestal 28 is provided upright at a position corresponding to the receiving seat 54 of the carrier bar 50.
The carrier bar 50 being conveyed to the position 26 can be supported. At this time, the height of each pedestal 28 is
The height is necessary and sufficient so that the object 110 to be treated, which is suspended from the carrier bar 50 with the carrier bar 50 suspended on the pedestal 28, is just immersed in each of the processing tanks 22 to 26. A wheeled hoist 100 is shown in FIGS. 4 and 5.

This hanging tool 100 includes a hanging rail 12 made of type 1 steel,
13..., two wheels 1 each engaged with both sides of the support rails 51 etc. of the carrier bar 50 and moving on these rails.
01, a pair of frames 102 that rotatably support these wheels 101, and these frames 102.
It is spanned between the lower part of the frame and both ends of each frame are
A protruding shaft 103 is protruded from the frame 102 and the protruding portion thereof is capable of engaging with a dock of a conveyance dog chain (not shown).
a lug 104 with a hole whose upper end is supported by the lug 1;
Hanger 10 whose upper end is swingably supported in hole 04
5, and a C-hook 106, one end of which is swingably supported by the lower end of the hanger 105, and the end of which is engaged with a hanging bolt 111 of a workpiece 110 such as reinforcement for a concrete panel. , the object to be processed 110 can be smoothly moved along each of the hanging rails 12, 13, . . . in a suspended state. The reference numeral 29 in FIGS. 2 and 3 indicates degreasing, pickling, and neutralization treatment tanks 22, 24,
26 is shown, and the suction port of the exhaust hood of this exhaust device 29 is opened on both sides of each treatment tank 22, 24, 26 in the longitudinal direction.

Next, the operation of this embodiment will be explained with reference to the operation time chart of the rust prevention pretreatment device 20 shown in FIG. 6.

In FIG. 1, a workpiece 110 brought in by the first traverser 10 is suspended from a hanging rail 12 via a wheeled hanging device 100 by a worker at a sling workbench. The workpiece 1 10 suspended from the hanging rail 12 is carried into the carrying-in section 21 of the rust prevention pretreatment device 20 manually or automatically. At this time, the carrier bar 5 is placed in the carry-in section 21 by the action of the carry-in side carrier bar moving device 80.
The support rail 51 of the carrier bar 50 has been moved to be located on the extension line of the suspension rail 12, and the object to be processed 110 will be transferred from the suspension rail 12 onto the support rail 51 of the carrier bar 50 (Fig. 3). reference). When the workpiece 110 is transferred to the carrier bar 501 in this manner, the pusher cylinders 83 on both sides of the moving device 80 are simultaneously operated to advance the piston rod, and the moving table 82 is moved as shown by the chain line in FIG. is moved to the carrier transfer position.

On the other hand, the first transfer device 63 is also moved toward the carry-in section 21 side by the operation of the traveling drive source 74, and receives the carrier bar 50 at the carrier bar transfer position. At this time, the moving bracket 76 of the first transfer device 63 is located near the lower position of the support protrusion 53 of the carrier bar 50,
When the first transfer device 63 is stopped at the carrier bar transfer position, the movable bracket 76 is raised by the lifting drive source 78 and moved to the traveling position. First transfer device 63
When the carrier bar 50 is received by the transfer device 63
is moved to the position of the degreasing processing tank 22 and stopped, and then the moving bracket 76 is lowered, and the object to be processed 110 is immersed in the processing tank 22. At this time, when the movable bracket 76 is lowered and the object 110 is immersed in the proper position, the seats 54 of the carrier bar 50 are supported by the seats 28' on both sides of the processing tank 22. This state will be maintained for a predetermined period of time. On the other hand, when the movable bracket 76 is further lowered and is completely separated from the carrier bar 50, the transfer device 63 is driven to travel.
The object to be treated 110, which had already been immersed in the first washing tank 23, is pulled up along with the carrier bar 50, and then moved to the next process position, that is, the first washing processing tank 23. Process position, that is, pickling treatment tank 24
The object 110 to be processed is immersed in the object 110, and is moved to the next step in an empty state (a state in which the carrier bar 50 is not supported). In this embodiment, the movement range of the first transfer device 63 is up to the pickling treatment tank 24. The treated material 110 immersed in the pickling treatment tank 24 in this way is pulled up together with the carrier bar 50 by the second transfer device 64, and then transferred to the next second washing treatment tank 25,
It is sequentially transferred to the neutralization treatment tank 26, and finally transferred to the carry-out section 27 shown by the solid line in FIG.

The carrier bar 5 transferred to the moving device 90 is moved to the position indicated by the chain line in FIG. 2 by the operation of the pusher cylinder 93, and is then moved manually or automatically to the hanging rail 13. The above-mentioned first and second transfer devices 6
The movement of No. 3, 64 will be further explained in detail based on FIG.

At the time of startup or at the beginning of a cycle when the first and second transfer devices 63 and 64 are automatically operated, the first transfer device 63 is in the position of the first water washing treatment tank 23, and the second
The transfer devices 64 are located at the unloading section 27 and are in an empty state (a state in which they do not support the carrier bar 50).

When the start button is pressed or the cycle is started in this state, the first transfer device 63 pulls up the carrier bar 50 on which the processed material 110 that has just been carried is suspended, and transports it to the degreasing processing tank 22. The object to be treated 110, which had already been soaked in the washing tank 23 in the previous cycle, is pulled up and pickled. It is carried to the processing tank 24 and immersed, becomes empty, and is again moved to the loading section 21, where it is kept on standby for a predetermined period of time. On the other hand, the second transfer device 64' is transferred from the unloading section 27 to the position of the pickling treatment tank 24, and has already been transferred to the pickling treatment tank 24 in the previous cycle.
The object to be treated 110 that had been immersed in water is lifted up, carried to the second washing treatment tank 25 and immersed, and then immediately pulled up.
It is moved as it is to the neutralization treatment tank 26.

At this time, the reason why the immersion is not carried out for a long time in the second washing treatment tank 25 is to prevent the pickled object 11 from rusting. The second transfer device 64, which has been moved to the neutralization treatment tank 26, transfers the object to be treated 110 that has been transported here.
is immersed in the neutralization treatment tank 26, and is moved to the unloading section 27 in an air condition. The carrier bar 50 was moved to the first washing tank 23, where the empty carrier bar 50 was placed, and the carrier bar 50 was transferred to the neutralization tank 26, where it waited for a predetermined period of time. Thereafter, the object to be treated 110 that had previously been immersed in the neutralization treatment tank 26 is pulled up and moved to the carry-out section 27, and the object to be treated 110 is delivered to the carrier bar moving device 90 on the carry-out side. The cycle will repeat. Further, when the empty carrier bar 50 is carried to the first washing treatment tank 23 by the second transfer device 64, the first transfer device 63, which has been waiting at the carry-in position, is transferred to the second transfer device 64. After a short period of time, for example, about 2 seconds, the carrier bars are moved to the first washing treatment tank 23, where they receive the empty carrier bars 50, and then moved to the carry-in section 21 again, where they are filled with empty carrier bars. 50 is delivered to the carry-in side kisser bar moving device 80, and the bar itself is moved to the degreasing treatment tank 22 in an empty state. Here, the processing tank 22 for pre-degreasing
The object to be treated 110 immersed in the tank is pulled up and moved to the first water washing treatment tank 23, where the object to be treated 110 is immersed, and the tank becomes empty, and the above-described cycle is repeated again. Further, the empty carrier bar 50 passed to the carry-in carrier bar moving device 80 is positioned on the extension line of the hanging rail 12 by the operation of the pusher cylinder 83 in the retracting direction, and is used for carrying in the next workpiece 110. It will be prepared. The processed material 110 sent from the rust prevention pretreatment device 20 to the hanging rail 13 side is dried in a drain drying oven 32, as shown in FIG. 1, and then transferred to a masking workbench 33. areas that should not be covered with mortar, such as connection surfaces with other panels or threaded areas, are covered with adhesive tape.
is transferred to the traverser 34 of.

The workpiece 110 transferred to the traverser 34 is transferred to the position of the hanging rail 14 by the traverser 34, and is transferred to the hanging rail 14. The object to be treated 110 transferred to the hanging rail 14 is transferred to the automatically operated anti-corrosion treatment tank 36, where it is immersed in mortar liquid and coated with mortar over the entire surface to prevent rust. It is transferred to the drying chamber 37.

The workpiece 11 transferred to the anti-rust drying chamber 37 is transferred to the moving rail 40 which is being moved intermittently.
Items that are transferred from one side to the other and need to be reprocessed are transferred to a second traverser 34 via a reprocessing conveyor 15.
The products that do not need to be reprocessed are transported to the hanging rail 14, transferred to the anti-mirror pretreatment tank 36, and covered with mortar again.
transferred to the side. The workpiece 110 sent to the finished product conveyor 16 passes through the third traverser 43 and is transferred to the hanging rail 1.
7, the adhesive tape etc. pasted on the masking workbench 33 is peeled off at the position of the masking removal workbench 44, transferred to the traverser 45 equipped with a lifter, and the wheeled hanging tool 100 is removed. , only the object 110 to be processed is carried out to the next process by this traverser 45.

According to this embodiment as described above, in the rust prevention pretreatment reinstallation, two transfer devices 63 and 64 are used, and a plurality of carrier bars 50 are used to compensate for the difference in treatment time of each treatment tank 22 to 26. Since the optimal pretreatment operation can be carried out while taking into account the process, work efficiency can be improved, and changes in the treatment process can be handled simply by changing the operating program of each transfer device 63, 64, making it possible to provide versatility.

In addition, since carrier bar moving devices 80 and 90 are provided in the carrying-in section 21 and the carrying-out section 7 of the workpiece 110, respectively, the workpiece 110 is carried in while the first and second transfer devices 63 and 64 are moving. Alternatively, since it can be carried out, work efficiency can be improved from this point as well. Furthermore, the rust prevention treatment system including the rust prevention pretreatment device 20 uses second and third traversers 34 and 43 at appropriate positions to arrange the lines in a zigzag pattern, so it is efficient with less space. Able to perform work well. In addition, in implementation, the number of treatment tanks 22 to 26 and the processing contents of the rust prevention pretreatment device 20 may be different from those in the above embodiment, and the transfer of the carrier bar 50 by the two transfer devices 63 and 64 is performed in the sixth embodiment. It may be completely different from the time chart shown in the figure.

Furthermore, the carrier bar moving devices 80 and 90 do not necessarily need to be provided; in this case, the transfer devices 63 and 64 are provided from the hanging rail 12 at the loading section 21 or the loading section 27, and the carrier bar moving devices 80 and 90 are directly connected to the hanging rail 13. 110 may be brought in or taken out. However, the above embodiment has the advantage that the transfer devices 63 and 64 can be used efficiently. Furthermore, transfer devices 63, 64
, the number of moving brackets 80, 90, carrier bars 50, and other configurations of the devices are not limited to the above embodiments, and may have other configurations. It may be modified so that two or more carrier bars 50 can be conveyed at the same time. As described above, according to the present invention, it is possible to provide a rust prevention pretreatment device with good work efficiency and high versatility.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing a schematic configuration of a rust prevention treatment system including an embodiment of the rust prevention pretreatment device according to the present invention, and FIG. 2 is a schematic diagram of the rust prevention pretreatment system according to the present invention. An enlarged plan view showing the embodiment, FIG. 3 is a sectional view thereof, FIG. 4 is a partially cutaway front view of a wheeled hanging odor used in a rust prevention treatment system, FIG. 5 is a side view thereof, and FIG. The figure is a time chart showing an example of the operation of this embodiment.

20... Rust prevention pre-treatment device, 21... Processing material carrying-in section, 22-26... Processing tank, 27... Processing material carrying-out section, 50... Career bar, 63, 64
．． ．．・・・．・First and second transfer devices, 71...
Frame, 75... Guide column, 76...
...Moving bracket, 77...Interlocking mechanism, 78
. . . Lifting drive source, 80, 90 . . . Carrying-in side and unloading side carrier bar moving device, 100
...Hanging device with wheels, 110...Object to be treated.

Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1. A plurality of processing tanks for pickling, water washing, etc., a processing material loading section provided on one side of these processing tanks, and a processing material transporting section provided on the other side of the plurality of processing tanks, A plurality of carrier bars that are capable of supporting the workpieces carried into the workpiece loading section and are transported together with the workpieces to the workpiece unloading section; a first transfer device that is movable to a predetermined position in the tank, supports one or more of the carrier bars, and has an elevating mechanism that moves the carrier bar up and down; a second transfer device that is movable up to the unloading section partially overlapping the movement range of the first transfer device and has a lifting mechanism that supports one or more of the carrier bars and moves the carrier bars up and down; A rust prevention pretreatment device characterized by comprising: